IBM Quantum vs Quantinuum
IBM Quantum vs Quantinuum, compared side by side on 14 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: IBM Quantum is on 12/100 and Quantinuum on 66/100.
Where each one leads
IBM Quantum
- domain rating: 92/100 against 72/100
Quantinuum
- our overall score: 66/100 against 12/100
- agent readiness: 36/100 against 31/100
At a glance
| Measure | IBM Quantum | Quantinuum |
|---|---|---|
| What it is | IBM's initiative to advance quantum computing hardware, software, and services. | Quantum computing company focused on building fault-tolerant quantum computers and quantum software. |
| Category | Quantum Computing, AI Hardware, AI Chip, Foundation Model | Quantum Computing, AI Chip, AI Hardware, Quantum Error Correction |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Hardware | software | platform |
| Founded | 2016 | 2021 |
| Headquarters | Yorktown Heights, United States | Broomfield, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | IBM Quantum | Quantinuum |
|---|---|---|
| Employees | Not published | 663 |
| Total funding | Not published | $1.2B |
| Valuation | Not published | $10K |
| LinkedIn followers | Not published | 62,825 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | IBM Quantum | Quantinuum |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 12/100 | 66/100 |
| Traction | Not published | 60/100 |
| Team | 10/100 | 70/100 |
| Community | Not published | 15/100 |
| Search visibility | 13/100 | 23/100 |
| Quality | Not published | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (31/100) | F (36/100) |
| Domain ratingLink authority, 0-100 | 92/100 | 72/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | IBM Quantum | Quantinuum |
|---|---|---|
| Hosting | Azure | Not detected |
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Bootstrap | Not detected |
| Analytics | Microsoft Clarity | Google Analytics 4, Google Tag Manager |
| Support stack | Not detected | HubSpot |
| Open source | Yes | No |
IBM Quantum vs Quantinuum: common questions
Which is better, IBM Quantum or Quantinuum?
On our 0-100 score Quantinuum rates higher (66/100 against 12/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 14 data points above: read the rows that match what you are buying for.
How do IBM Quantum and Quantinuum compare on the numbers?
IBM Quantum leads on domain rating (92/100 against 72/100). Quantinuum leads on our overall score (66/100 against 12/100), agent readiness (36/100 against 31/100).
Read the full IBM Quantum review and pricing or the Quantinuum review and pricing. You can also browse other IBM Quantum alternatives we track.

